I could only complete this puzzle by use of trial and error of 2 possible numbers in one space.I had exhausted all logical approaches at this point.Have I missed a logical solution from this point?Can anyone help,please?

Perhaps it was just a typing error but you don't seem to be using all the information that was originally supplied.Row 3 column 6 is a '6' because that was given to you from the very start.Hope that helps.